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DSST Physical Sciences Principles

Subjects : dsst, science

Instructions:

Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
263 degrees kelvin
Decreased
12 miles per hour
Means less power is transmitted

2. Circular motion requires centripetal force
Newtons second principle of Universal Gravitation
First principle of Centripetal force
Waste heat for secondary uses
Might stay the same

3. Electrical energy can be converted to...
Universal
Mechanical - chemical - and radiant energy
Waves and particles
Means less power is transmitted

4. cogeneration uses...
Waste heat for secondary uses
Movement
Might stay the same
Means less power is transmitted

5. In burning coal - what contaminant is of major concern as a pollutant...
Less on the moon
Decreased
Sulfur
Difference between the heat supplied and the heat exhausted

6. Raising an auto in a service station requires work. Raising it twice as high requires...
Halogen radicals interfering in ozone synthesis
Twice the work
Increasing speed and constant acceleration
Disorder

7. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
Twice the work
Newtons second principle of Universal Gravitation
263 degrees kelvin
5 m/s

8. The work that a heat engine is able to accomplish is ideally equivalent to the
Disorder
Heat of fusion
Difference between the heat supplied and the heat exhausted
Newtons second principle of Universal Gravitation

9. Electromagnetic radiation can be viewed as...
Less on the moon
Waves and particles
Newtons first principle of Universal Gravitation
Decreased

10. The ozone hole results from...
Halogen radicals interfering in ozone synthesis
Near a maximum
Waves and particles
Momentum

11. Increasing the frequency of light
Increases the energy
Third principle of Centripetal force
Heat of fusion
263 degrees kelvin

12. The gravitational force - two masses are directly proportional to the mass of each object
Universal
Newtons second principle of Universal Gravitation
Heat of fusion
Movement

13. When you add heat to a substance - its temperature...
Newtons second principle of Universal Gravitation
Universal
Second principle of Centripetal force
Might stay the same

14. The reason that a spear fisherman cannot see where the fish is actually located is...
Third principle of Centripetal force
Total internal energy of an object
Less on the moon
Difference in the sped of light in water vs. air

15. Heat is the...
5 m/s
Less on the moon
Total internal energy of an object
Momentum

16. The larger the centripetal force - the faster an object travels in a circle of a given size
Newtons second principle of Universal Gravitation
Increasing speed and constant acceleration
Difference between the heat supplied and the heat exhausted
Second principle of Centripetal force

17. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
Means less power is transmitted
Newtons first principle of Universal Gravitation
5 m/s
12 miles per hour

18. The weight of one kilogram of iron on earth is...
Less on the moon
Heat of fusion
Disorder
Means less power is transmitted

19. If a charging elephant has kinetic energy - it must also have...
Momentum
Difference in the sped of light in water vs. air
Newtons second principle of Universal Gravitation
12 miles per hour

20. At a given speed - the centripetal force - the smaller the circle.
Heat of fusion
Universal
Twice the work
Third principle of Centripetal force

21. Which is not one of the fundamental forces of nature...
Universal
Newtons third principle of Universal Gravitation
Might stay the same
Momentum

22. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
First principle of Centripetal force
Remains unchanged
Might stay the same
Means less power is transmitted

23. Neglecting air resistance - a ball in free fall near the earth's surface will have...
Waves and particles
Increasing speed and constant acceleration
Waste heat for secondary uses
Decreased

24. Entropy refers to...
Waves and particles
Disorder
Increases the energy
Near a maximum

25. The heat involved in the change of phase of phase from solid ice to liquid water is called...
Heat of fusion
Twice the work
Means less power is transmitted
Difference in the sped of light in water vs. air

26. All objects with mass are attracted to another by the gravitational force
Mechanical - chemical - and radiant energy
Means less power is transmitted
Newtons first principle of Universal Gravitation
Halogen radicals interfering in ozone synthesis

27. In a generator - the flow of electrons (current) is created by...
Increasing speed and constant acceleration
Universal
Movement
Newtons third principle of Universal Gravitation

28. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Newtons third principle of Universal Gravitation
Third principle of Centripetal force
Might stay the same
Increases the energy

29. A temperature of -10 degrees celsius is equivalent to...
263 degrees kelvin
Newtons first principle of Universal Gravitation
Disorder
Total internal energy of an object

30. From the 50's and to the 70's - the pH of rain in the northeast had..
Newtons third principle of Universal Gravitation
Decreased
Disorder
Newtons second principle of Universal Gravitation

31. The theoretical production curve of oil indicates oil production is...
5 m/s
Universal
Sulfur
Near a maximum